2026 NPPES data Rheumatology Physician NPI 1477548345 M.D.
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Duncan McCall, M.D.

Rheumatology Physician in Statesville, North Carolina. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,181 in Rheumatology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
3K
Medicare Part D claims · 420 beneficiaries · Rheumatology Physician avg: 2K
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Duncan McCall, M.D. filed 2,706 Medicare Part D claims in 2023 as a Rheumatology Physician in Statesville, North Carolina, prescribing 94% generic.

3K
Part D claims, 2023
94%
generic prescribing

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

Duncan McCall, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

2,706 Top 12% higher than 88% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2K+: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic, not verified)

Duncan McCall, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Duncan McCall, M.D.?

Quality data not reported

NPI registry status

Active

Issued 09/15/2005

NPI 1477548345

Primary specialty

Rheumatology Physician

Mid-sized

6,181 US NPIs in this specialty

Medicare Part D claims

2,706 32% vs specialty avg

2023 prescription claims

Specialty avg: 2,054

Specialty distribution in North Carolina

How Rheumatology Physician compares to other specialties among North Carolina providers

North Carolina providers

Largest specialties in North Carolina (% of in-state providers)

Clinical Social Worker - 7.1%Clinical Social Worker7.1%Behavior Technician - 6.4%Behavior Technician6.4%Pharmacist - 5%Pharmacist5%Student in an Organized Health Care Education/Training Program - 4.5%Student in an Organized Health Care Education/Training Program4.5%Physical Therapist - 4.3%Physical Therapist4.3%Physician Assistant - 4.2%Physician Assistant4.2%Rheumatology Physician - 0.1%Rheumatology Physician0.1%
Largest specialties in North Carolina (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Rheumatology Physician. Verify directly:

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Duncan McCall, M.D. appears in the CMS NPPES registry as a Rheumatology Physician provider holding M.D. credentials at 633 BROOKDALE DR STE 100, Statesville, NC, 28677, with a listed phone of (704) 873-7850. NPI 1477548345 was issued on 09/15/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what McCall most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 2,706 prescription claims written by this provider, covering 420 Medicare beneficiaries and totaling roughly $764K in drug spend, split 6% brand-name and 94% generic by claim count, with an opioid prescribing rate of 4.5%. These figures capture only Medicare Part D, commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Rheumatology Physician is a mid-sized specialty nationwide, with 6,181 enrolled providers across 52 states and an average of 2,054 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

633 BROOKDALE DR STE 100
Statesville, NC 28677

Provider Details

NPI 1477548345
Specialty Rheumatology Physician
Credentials M.D.
Gender Male
NPI Issued 09/15/2005

Brand vs generic prescribing mix · Generic-heavy

Duncan McCall, M.D. - brand share 6.0%
Rheumatology Physician average

6% brand-name claims vs 94% generic, on 2,706 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

2,706
Total Claims
$764K
Total Drug Cost
420
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,392
Total Day Supply
130,265
Brand vs Generic
6% brand / 94% generic
Brand Drug Cost
$682K
Generic Drug Cost
$82K
Opioid Claims
122 (4.5% rate)
Antibiotic Claims
20

Patient Demographics

Average Patient Age
70.8 years
Avg HCC Risk Score
1.74
Gender Split
74% female / 26% male
Age Distribution
<65: 73, 65-74: 187, 75-84: 139, 85+: 21

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Duncan McCall, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Prednisone
378
Hydroxychloroquine Sulfate
377
Methotrexate
Methotrexate Sodium
237
Gabapentin
146
Leflunomide
127
Meloxicam
126
Allopurinol
108
Tizanidine Hcl
89
Cyclobenzaprine Hcl
85
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
80

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Rheumatology Physician Overview

How Duncan McCall, M.D. fits within the Rheumatology Physician landscape nationally.

6,181
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,054
Avg Claims per Provider

Duncan McCall, M.D.'s 2,706 claims are above the specialty average of 2,054.

Nearby Rheumatology Physician Providers in North Carolina

Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as McCall.

Compare Rheumatology Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the North Carolina medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Rheumatology Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Duncan McCall, M.D.'s specialty?
Duncan McCall, M.D. specializes in Rheumatology Physician and practices in Statesville, North Carolina. Credentials: M.D..
How much does Duncan McCall, M.D. prescribe under Medicare Part D?
In 2023, Duncan McCall, M.D. wrote 2,706 Medicare Part D claims totaling $764K in drug costs for 420 beneficiaries.
Where is Duncan McCall, M.D. located?
Duncan McCall, M.D. is located at 633 BROOKDALE DR STE 100, Statesville, NC, 28677. Phone: (704) 873-7850.
What is Duncan McCall, M.D.'s NPI number?
Duncan McCall, M.D.'s National Provider Identifier (NPI) is 1477548345, issued on 09/15/2005.
Does Duncan McCall, M.D. prescribe more brand-name or generic drugs?
Duncan McCall, M.D.'s prescribing is 6% brand-name and 94% generic drugs by claim count, with $682K in brand drug costs.
Does Duncan McCall, M.D. prescribe opioids?
Yes, Duncan McCall, M.D. had 122 opioid claims in 2023 with an opioid prescribing rate of 4.5%.
How many Rheumatology Physician providers are there in the US?
There are 6,181 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,054 Medicare Part D claims per year.
What drugs does Duncan McCall, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Duncan McCall, M.D.'s most frequently prescribed drugs include Prednisone, Hydroxychloroquine Sulfate, Methotrexate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Duncan McCall, M.D. accept Medicare?
Duncan McCall, M.D. appears in CMS Medicare data with 2,706 Part D claims and 420 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Duncan McCall, M.D.'s credentials?
Duncan McCall, M.D.'s NPI is 1477548345 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Compiled from official public sources by the PlainDoctor editorial team.